Try this, adding a mypaypal div
Photos looking out into the world.
<html>
<div id="mypaypal">
<p align="right">
<div class="paypalButton">
<form target="paypal" action="https://www.paypal.com/cgi-bin/webscr" method="post" onSubmit="setPaypalForm(this)" >
<input type="hidden" name="add" value="1">
<input type="hidden" name="cmd" value="_cart">
<input type="hidden" name="business" value="andrew.tobin@tobinators.com">
<input type="hidden" name="item_name" value="">
<input type="hidden" name="amount" value="">
<input type="hidden" name="no_shipping" value="0">
<input type="hidden" name="no_note" value="1">
<input type="hidden" name="currency_code" value="GBP">
<input type="hidden" name="lc" value="GB">
<input type="hidden" name="bn" value="PP-ShopCartBF">
<select name="photoselection">
<option selected value="7.50">Print: 5" x 7" - UK£7.50 inc VAT & postage
<option value="13.50">Print: A4 - UK£13.50 inc VAT & postage
<option value="25.00">Print A3 - UK£25.00 inc VAT & postage
</select>
<input type="image" src="https://www.paypal.com/en_GB/i/btn/btn_cart_SM.gif" border="0" name="submit" alt="PayPal - The safer, easier way to pay online.">
<img alt="" border="0" src="https://www.paypal.com/en_AU/i/scr/pixel.gif" width="1" height="1">
</form>
<form target="paypal" action="https://www.paypal.com/cgi-bin/webscr" method="post">
<input type="hidden" name="cmd" value="_cart">
<input type="hidden" name="business" value="andrew.tobin@tobinators.com">
<input type="image" src="https://www.paypalobjects.com/WEBSCR-525-20080625-1/en_GB/i/btn/btn_viewcart_SM.gif" border="0" name="submit" alt="PayPal - The safer, easier way to pay online.">
<input type="hidden" name="display" value="1">
</form>
</div>
</p>
</html>
Then use css
#mypaypal {float: right;}
to move it all to the right.